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Official data from INPI

Processo para refinação de um adubo derivado de rejeito municipal.

ConcedidaInvention Patent

Application data

Number

PI7906662

Type

Invention Patent

Filing

10/16/1979

Publication

-

Progress at the INPI

  1. Filing10/16/79
  2. Publication
  3. Examination06/15/82
  4. Allowance05/22/84
  5. Grant11/27/84
  6. Expired04/25/95

The letters patent expired on 04/25/1995: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/27/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. C. (pessoa física)

JP

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Inventors

H. H. (pessoa física)

K. I. (pessoa física)

Y. H. (pessoa física)

Technical data

IPC Classification

Priority claims

JP

127700/78 · 10/17/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/27/1984

RPI 736

Notificação para pagamento de retribuição

#13.1

09/04/1984

RPI 724

Deferimento

#9.1

05/22/1984

RPI 709

Exigência - art. 36 da LPI

#6.1

12/20/1983

RPI 687

6.2

02/08/1983

RPI 642

Solicitação de exame técnico

#4.1

06/15/1982

RPI 608

Carta-patente expirada

#21.1

04/25/1995

RPI 1273

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